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首页> 外文期刊>Physical review letters >Direct Measurement of the Cosmic-Ray Carbon and Oxygen Spectra from 10 GeV/n to 2.2 TeV/n with the Calorimetric Electron Telescope on the International Space Station
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Direct Measurement of the Cosmic-Ray Carbon and Oxygen Spectra from 10 GeV/n to 2.2 TeV/n with the Calorimetric Electron Telescope on the International Space Station

机译：将宇宙射线碳和氧气光谱直接测量10 GEV / N至2.2 TEV / N，在国际空间站上的量热电子望远镜

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摘要

in this paper, we present the measurement of the energy spectra of carbon and oxygen in cosmic rays based on observations with the Calorimetric Electron Telescope on the International Space Station from October 2015 to October 2019. Analysis, including the detailed assessment of systematic uncertainties, and results are reported. The energy spectra are measured in kinetic energy per nucleon from 10 GeV/n to 2.2 TeV /n with an all -calorimetric instrument with a total thickness corresponding to 1.3 nuclear interaction length. The observed carbon and oxygen fluxes show a spectral index change of similar to 0.15 around 200 GeV/n established with a significance 3 sigma. They have the same energy dependence with a constant C/O flux ratio 0.911 +/- 0.006 above 25 GeV/n. The spectral hardening is consistent with that measured by AMS-02, but the absolute normalization of the flux is about 27% lower, though in agreement with observations from previous experiments including the PAMELA spectrometer and the calorimetric balloon -borne experiment CREAM.
机译：在本文中，我们在2015年10月到2019年10月的国际空间站上的热量电子望远镜的观测结果展示了宇宙射线中碳和氧气的能谱。分析，包括对系统不确定性的详细评估，以及报告了结果。通过10 gev / n至2.2 tev / n的每核素的动能测量能量谱，其全型仪器具有对应于1.3核相互作用长度的总厚度。所观察到的碳和氧气通量显示出类似于0.15的光谱指数变化，其与具有意义> 3 sigma建立的0.15左右。它们具有与恒定的C / O助焊比0.911 +/- 0.006以上的相同能量依赖性。光谱硬化与AMS-02测量一致，但磁通量的绝对标准化率降低约为27％，但与先前实验的观察结果相一致，包括Pamela光谱仪和热气囊 - 载重的实验霜。

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  • 来源
    《Physical review letters》 |2020年第25期|251102.1-251102.7|共7页
  • 作者

    Adriani O.; Akaike Y.; Asano K.; Asaoka Y.; Bagliesi M. G.; Berti E.; Bigongiari G.; Binns W. R.; Bongi M.; Brogi P.; Bruno A.; Buckley J. H.; Cannady N.; Castellini G.; Checchia C.; Cherry M. L.; Collazuol G.; Ebisawa K.; Fuke H.; Gonzi S.; Guzik T. G.; Hams T.; Hibino K.; Ichimura M.; Ioka K.; Ishizaki W.; Israel M. H.; Kasahara K.; Kataoka J.; Kataoka R.; Katayose Y.; Kato C.; Kawanaka N.; Kawakubo Y.; Kobayashi K.; Kohri K.; Krawczynski H. S.; Krizmanic J. F.; Link J.; Maestro P.; Marrocchesi P. S.; Messineo A. M.; Mitchell J. W.; Miyake S.; Moiseev A. A.; Mori M.; Mori N.; Motz H. M.; Munakata K.; Nakahira S.; Nishimura J.; de Nolfo G. A.; Okuno S.; Ormes J. F.; Ospina N.; Ozawa S.; Pacini L.; Palma F.; Papini P.; Rauch B. F.; Ricciarini S. B.; Sakai K.; Sakamoto T.; Sasaki M.; Shimizu Y.; Shiomi A.; Sparvoli R.; Spillantini P.; Stolzi F.; Sugita S.; Suh J. E.; Sulaj A.; Takita M.; Tamura T.; Terasawa T.; Torii S.; Tsunesada Y.; Uchihori Y.; Vannuccini E.; Wefel J. P.; Yamaoka K.; Yanagita S.; Yoshida A.; Yoshida K.;

  • 作者单位

    Univ Florence Dept Phys Via Sansone 1 I-50019 Sesto Fiorentino Italy|Ist Nazl Fis Nucl Sez Florence Via Sansone 1 I-50019 Sesto Fiorentino Italy;

    Waseda Univ Waseda Res Inst Sci & Engn Shinjuku Ku 17 Kikuicho Tokyo 1620044 Japan|Japan Aerosp Explorat Agcy Human Spaceflight Technol Directorate JEM Utilizat Ctr 2-1-1 Sengen Tsukuba Ibaraki 3058505 Japan;

    Univ Tokyo Inst Cosm Ray Res 5-1-5 Kashiwanoha Kashiwa Chiba 2778582 Japan;

    Univ Tokyo Inst Cosm Ray Res 5-1-5 Kashiwanoha Kashiwa Chiba 2778582 Japan;

    Univ Siena Dept Phys Sci Earth & Environm Via Roma 56 I-53100 Siena Italy|Ist Nazl Fis Nucl Sez Pisa Largo B Pontecorvo 3 I-56127 Pisa Italy;

    Univ Florence Dept Phys Via Sansone 1 I-50019 Sesto Fiorentino Italy|Ist Nazl Fis Nucl Sez Florence Via Sansone 1 I-50019 Sesto Fiorentino Italy;

    Univ Siena Dept Phys Sci Earth & Environm Via Roma 56 I-53100 Siena Italy|Ist Nazl Fis Nucl Sez Pisa Largo B Pontecorvo 3 I-56127 Pisa Italy;

    Washington Univ Dept Phys One Brookings Dr St Louis MO 63130 USA|Washington Univ McDonnell Ctr Space Sci One Brookings Dr St Louis MO 63130 USA;

    Univ Florence Dept Phys Via Sansone 1 I-50019 Sesto Fiorentino Italy|Ist Nazl Fis Nucl Sez Florence Via Sansone 1 I-50019 Sesto Fiorentino Italy;

    Univ Siena Dept Phys Sci Earth & Environm Via Roma 56 I-53100 Siena Italy|Ist Nazl Fis Nucl Sez Pisa Largo B Pontecorvo 3 I-56127 Pisa Italy;

    NASA Helios Her Phys Lab GSFC Greenbelt MD 20771 USA;

    Washington Univ Dept Phys One Brookings Dr St Louis MO 63130 USA|Washington Univ McDonnell Ctr Space Sci One Brookings Dr St Louis MO 63130 USA;

    Univ Maryland Baltimore Cty Ctr Space Sci & Technol 1000 Hilltop Circle Baltimore MD 21250 USA|NASA GSFC Astroparticle Phys Lab Greenbelt MD 20771 USA|NASA GSFC Ctr Res & Explorat Space Sci & Technol Greenbelt MD 20771 USA;

    Natl Res Council CNR Inst Appl Phys IFAC Via Madonna Piano 10 I-50019 Sesto Fiorentino Italy;

    Univ Florence Dept Phys Via Sansone 1 I-50019 Sesto Fiorentino Italy|Ist Nazl Fis Nucl Sez Florence Via Sansone 1 I-50019 Sesto Fiorentino Italy;

    Louisiana State Univ Dept Phys & Astron 202 Nicholson Hall Baton Rouge LA 70803 USA;

    Univ Padua Dept Phys & Astron Via Marzolo 8 I-35131 Padua Italy|Ist Nazl Fis Nucl Sez Padova Via Marzolo 8 I-35131 Padua Italy;

    Japan Aerosp Explorat Agcy Inst Space & Astronaut Sci Chuo Ku 3-1-1 Yoshinodai Sagamihara Kanagawa 2525210 Japan;

    Japan Aerosp Explorat Agcy Inst Space & Astronaut Sci Chuo Ku 3-1-1 Yoshinodai Sagamihara Kanagawa 2525210 Japan;

    Univ Florence Dept Phys Via Sansone 1 I-50019 Sesto Fiorentino Italy|Ist Nazl Fis Nucl Sez Florence Via Sansone 1 I-50019 Sesto Fiorentino Italy;

    Louisiana State Univ Dept Phys & Astron 202 Nicholson Hall Baton Rouge LA 70803 USA;

    Univ Maryland Baltimore Cty Ctr Space Sci & Technol 1000 Hilltop Circle Baltimore MD 21250 USA;

    Kanagawa Univ 3-27-1 Rokkakubashi Yokohama Kanagawa 2218686 Japan;

    Hirosaki Univ Fac Sci & Technol Grad Sch Sci & Technol Bunkyo Ku Hirosaki Aomori 0368561 Japan;

    Kyoto Univ Yukawa Inst Theoret Phys Sakyo Ku Kitashirakawa Oiwakecho Kyoto 6068502 Japan;

    Univ Tokyo Inst Cosm Ray Res 5-1-5 Kashiwanoha Kashiwa Chiba 2778582 Japan;

    Washington Univ Dept Phys One Brookings Dr St Louis MO 63130 USA|Washington Univ McDonnell Ctr Space Sci One Brookings Dr St Louis MO 63130 USA;

    Shibaura Inst Technol Dept Elect Informat Syst 307 Fukasaku Minuma Saitama 3378570 Japan;

    Waseda Univ Waseda Res Inst Sci & Engn Shinjuku Ku 3-4-1 Okubo Tokyo 1698555 Japan;

    Natl Inst Polar Res 10-3 Midori Cho Tachikawa Tokyo 1908518 Japan;

    Yokohama Natl Univ Fac Engn Div Intelligent Syst Engn 79-5 Tokiwadai Yokohama Kanagawa 2408501 Japan;

    Shinshu Univ Fac Sci 3-1-1 Asahi Matsumoto Nagano 3908621 Japan;

    Kyoto Univ Hakubi Ctr Sakyo Ku Yoshida Honmachi Kyoto 6068501 Japan|Kyoto Univ Grad Sch Sci Dept Astron Sakyo Ku Kitashirakawa Oiwake Cho Kyoto 6068502 Japan;

    Louisiana State Univ Dept Phys & Astron 202 Nicholson Hall Baton Rouge LA 70803 USA;

    Waseda Univ Waseda Res Inst Sci & Engn Shinjuku Ku 17 Kikuicho Tokyo 1620044 Japan|Japan Aerosp Explorat Agcy Human Spaceflight Technol Directorate JEM Utilizat Ctr 2-1-1 Sengen Tsukuba Ibaraki 3058505 Japan;

    High Energy Accelerator Res Org Inst Particle & Nucl Studies 1-1 Oho Tsukuba Ibaraki 3050801 Japan;

    Washington Univ Dept Phys One Brookings Dr St Louis MO 63130 USA|Washington Univ McDonnell Ctr Space Sci One Brookings Dr St Louis MO 63130 USA;

    Univ Maryland Baltimore Cty Ctr Space Sci & Technol 1000 Hilltop Circle Baltimore MD 21250 USA|NASA GSFC Astroparticle Phys Lab Greenbelt MD 20771 USA|NASA GSFC Ctr Res & Explorat Space Sci & Technol Greenbelt MD 20771 USA;

    Univ Maryland Baltimore Cty Ctr Space Sci & Technol 1000 Hilltop Circle Baltimore MD 21250 USA|NASA GSFC Astroparticle Phys Lab Greenbelt MD 20771 USA|NASA GSFC Ctr Res & Explorat Space Sci & Technol Greenbelt MD 20771 USA;

    Univ Siena Dept Phys Sci Earth & Environm Via Roma 56 I-53100 Siena Italy|Ist Nazl Fis Nucl Sez Pisa Largo B Pontecorvo 3 I-56127 Pisa Italy;

    Univ Siena Dept Phys Sci Earth & Environm Via Roma 56 I-53100 Siena Italy|Ist Nazl Fis Nucl Sez Pisa Largo B Pontecorvo 3 I-56127 Pisa Italy;

    Ist Nazl Fis Nucl Sez Pisa Largo B Pontecorvo 3 I-56127 Pisa Italy|Univ Pisa Largo B Pontecorvo 3 I-56127 Pisa Italy;

    NASA GSFC Astroparticle Phys Lab Greenbelt MD 20771 USA;

    Natl Inst Technol Ibaraki Coll Dept Elect & Elect Syst Engn 866 Nakane Hitachinaka Ibaraki 3128508 Japan;

    NASA GSFC Astroparticle Phys Lab Greenbelt MD 20771 USA|NASA GSFC Ctr Res & Explorat Space Sci & Technol Greenbelt MD 20771 USA|Univ Maryland Dept Astron College Pk MD 20742 USA;

    Ritsumeikan Univ Coll Sci & Engn Dept Phys Sci Kusatsu Shiga 5258577 Japan;

    Ist Nazl Fis Nucl Sez Florence Via Sansone 1 I-50019 Sesto Fiorentino Italy;

    Waseda Univ Fac Sci & Engn Global Ctr Sci & Engn Shinjuku Ku 3-4-1 Okubo Tokyo 1698555 Japan;

    Shinshu Univ Fac Sci 3-1-1 Asahi Matsumoto Nagano 3908621 Japan;

    Japan Aerosp Explorat Agcy Inst Space & Astronaut Sci Chuo Ku 3-1-1 Yoshinodai Sagamihara Kanagawa 2525210 Japan;

    Japan Aerosp Explorat Agcy Inst Space & Astronaut Sci Chuo Ku 3-1-1 Yoshinodai Sagamihara Kanagawa 2525210 Japan;

    NASA Helios Her Phys Lab GSFC Greenbelt MD 20771 USA;

    Kanagawa Univ 3-27-1 Rokkakubashi Yokohama Kanagawa 2218686 Japan;

    Univ Denver Dept Phys & Astron Phys Bldg Room 211 2112 East Wesley Ave Denver CO 80208 USA;

    Univ Padua Dept Phys & Astron Via Marzolo 8 I-35131 Padua Italy|Ist Nazl Fis Nucl Sez Padova Via Marzolo 8 I-35131 Padua Italy;

    Natl Inst Informat & Commun Technol Quantum ICT Adv Dev Ctr 4-2-1 Nukui Kitamachi Koganei Tokyo 1848795 Japan;

    Univ Florence Dept Phys Via Sansone 1 I-50019 Sesto Fiorentino Italy|Ist Nazl Fis Nucl Sez Florence Via Sansone 1 I-50019 Sesto Fiorentino Italy|Natl Res Council CNR Inst Appl Phys IFAC Via Madonna Piano 10 I-50019 Sesto Fiorentino Italy;

    Ist Nazl Fis Nucl Sez Rome Tor Vergata Via Ric Sci 1 I-00133 Rome Italy;

    Ist Nazl Fis Nucl Sez Florence Via Sansone 1 I-50019 Sesto Fiorentino Italy;

    Washington Univ Dept Phys One Brookings Dr St Louis MO 63130 USA|Washington Univ McDonnell Ctr Space Sci One Brookings Dr St Louis MO 63130 USA;

    Ist Nazl Fis Nucl Sez Florence Via Sansone 1 I-50019 Sesto Fiorentino Italy|Natl Res Council CNR Inst Appl Phys IFAC Via Madonna Piano 10 I-50019 Sesto Fiorentino Italy;

    Univ Maryland Baltimore Cty Ctr Space Sci & Technol 1000 Hilltop Circle Baltimore MD 21250 USA|NASA GSFC Astroparticle Phys Lab Greenbelt MD 20771 USA|NASA GSFC Ctr Res & Explorat Space Sci & Technol Greenbelt MD 20771 USA;

    Aoyama Gakuin Univ Coll Sci & Engn Dept Phys & Math Chuo Ku 5-10-1 Fuchinobe Sagamihara Kanagawa 2525258 Japan;

    NASA GSFC Astroparticle Phys Lab Greenbelt MD 20771 USA|NASA GSFC Ctr Res & Explorat Space Sci & Technol Greenbelt MD 20771 USA|Univ Maryland Dept Astron College Pk MD 20742 USA;

    Kanagawa Univ 3-27-1 Rokkakubashi Yokohama Kanagawa 2218686 Japan;

    Nihon Univ Coll Ind Technol 1-2-1 Izumi Narashino Chiba 2758575 Japan;

    Kyoto Univ Hakubi Ctr Sakyo Ku Yoshida Honmachi Kyoto 6068501 Japan|Univ Roma Tor Vergata Via Ric Sci 1 I-00133 Rome Italy;

    Univ Florence Dept Phys Via Sansone 1 I-50019 Sesto Fiorentino Italy;

    Univ Siena Dept Phys Sci Earth & Environm Via Roma 56 I-53100 Siena Italy|Ist Nazl Fis Nucl Sez Pisa Largo B Pontecorvo 3 I-56127 Pisa Italy;

    Aoyama Gakuin Univ Coll Sci & Engn Dept Phys & Math Chuo Ku 5-10-1 Fuchinobe Sagamihara Kanagawa 2525258 Japan;

    Univ Siena Dept Phys Sci Earth & Environm Via Roma 56 I-53100 Siena Italy|Ist Nazl Fis Nucl Sez Pisa Largo B Pontecorvo 3 I-56127 Pisa Italy;

    Univ Siena Dept Phys Sci Earth & Environm Via Roma 56 I-53100 Siena Italy|Ist Nazl Fis Nucl Sez Pisa Largo B Pontecorvo 3 I-56127 Pisa Italy;

    Univ Tokyo Inst Cosm Ray Res 5-1-5 Kashiwanoha Kashiwa Chiba 2778582 Japan;

    Kanagawa Univ 3-27-1 Rokkakubashi Yokohama Kanagawa 2218686 Japan;

    RIKEN 2-1 Hirosawa Wako Saitama 3510198 Japan;

    Waseda Univ Waseda Res Inst Sci & Engn Shinjuku Ku 17 Kikuicho Tokyo 1620044 Japan;

    Osaka City Univ Grad Sch Sci Div Math & Phys Sumiyoshi Ku 3-3-138 Sugimoto Osaka 5588585 Japan;

    Natl Inst Quantum & Radiat Sci & Technol Inage Ku 4-9-1 Anagawa Chiba 2638555 Japan;

    Ist Nazl Fis Nucl Sez Florence Via Sansone 1 I-50019 Sesto Fiorentino Italy;

    Louisiana State Univ Dept Phys & Astron 202 Nicholson Hall Baton Rouge LA 70803 USA;

    Nagoya Univ Chikusa Ku Nagoya Aichi 4648601 Japan;

    Ibaraki Univ Coll Sci 2-1-1 Bunkyo Mito Ibaraki 3108512 Japan;

    Aoyama Gakuin Univ Coll Sci & Engn Dept Phys & Math Chuo Ku 5-10-1 Fuchinobe Sagamihara Kanagawa 2525258 Japan;

    Shibaura Inst Technol Dept Elect Informat Syst 307 Fukasaku Minuma Saitama 3378570 Japan;

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